Question

24. The diagrams given below show the cross-seck
of two kinds of blood vessels :
1
2
(1) Identify the blood vessels A and B. In each ca
give a reason to support your answer.
(ii) Name the parts numbered 1 and 2.
(ii) When are the sounds "LUBB" and "DU
produced during a heartbeat ?
(iv) Name the blood vessel that
(1) begins and ends in capillaries.
(2) supplies blood to the walls of the heart​

Answer 1

hey there!

you forgot to attach the diagram.

have a check, and post the question again.